摘要
用悬浮熔炼法制备了不同含硅量的低钴LaNi5型储氢合金 ,用XRD法测定其结构 ,并测试了电化学容量和寿命 ,分析了Si含量对性能的影响 ,合成了新型储氢合金La0 .8Nd0 .2 Ni3 .6Co0 .4Mn0 .4A10 .3 Cu0 .1Fe0 .1Si0 .1,其比容量为 30 3mAh/g ,30 0次循环后的容量还有其最高容量的 84 %。
Low cobalt LaNi 5 type hydrogen storage alloys containing silicon were prepared by magnetic levitation melting.Their structure, specific capacity and cycle life were measured using X ray diffractometer and DC 5 battery testing instrument.It was found that silicon played an important role on the electrochemical characteristics of the alloys. On the basis of this finding, a new kind of hydrogen storage alloy La 0.8 Nd 0.2 Ni 3.6 Co 0.4 Mn 0.4 A1 0.3 Cu 0.1 Fe 0.1 Si 0.1 was developed, which shown a maximum capacity of 303?mAh/g and good cycling stability.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2001年第z2期156-159,共4页
The Chinese Journal of Nonferrous Metals
基金
春兰集团资助基金项目
关键词
LaNi5型储氢合金
合金制备
电化学
hydrogen storage alloys
preparation and study electrochemical performance
